User manual GARMIN QUATIX

[. . . ] quatix ? Owner?s Manual April 2013 190-01594-00_0B Printed in Taiwan All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Garmin. Garmin reserves the right to change or improve its products and to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements. Go to www. garmin. com for current updates and supplemental information concerning the use of this product. [. . . ] TIP: If necessary, after you start the timer you can select and to add or subtract time from the race timer. ? Tack Assist While cruising or racing into the wind, the tack assist feature can help you determine if your boat is being lifted or headed. ?When you calibrate tack assist, the device stores your boat's port and starboard courses over ground (COG), the mean true wind direction , and the vessel's tack angle . ? The device uses this data to determine whether your boat is being lifted or headed due wind shifts. ?NOTE: The quatix uses GPS-based course over ground to determine your course in the tack assist feature, and does not account for other factors that can affect your boat's direction, such as currents and tides. ? Lifted When your boat is lifted, the wind direction has shifted so that your actual course brings you closer to your destination than your intended course would have. ? The device displays in degrees the amount that your actual course varies from your expected course and your speed over ground . ?The bezel marks provide a quick reference that represents your lift angle. ?When your boat is consistently lifted, you should recalibrate the true wind direction or the angle for the current tack. ?Recalibration ensures the tack assist provides accurate information. ? Headed When your boat is headed, the wind direction has shifted so that your actual course pushes you farther from your destination than your intended course would have. ? 6 Applications NOTE: When you recalibrate the port or starboard tack direction, the tack angle remains the same, and the mean true wind direction and the opposite tack direction are recalculated. ?NOTE: When you change the tack angle, the mean true wind direction remains the same, and the port and starboard tacks each change by half of the amount of change in the tack angle with respect to the true wind direction. ?For example, if the tack angle changes by 10, the port tack changes by -5 and the starboard tack changes by 5. ?If the tack angle changes by -10, the port tack changes by 5 and the starboard tack changes by -5. ?To change the mean true wind direction, select True Wind D, and select the direction. ?NOTE: When you change the mean true wind direction, the tack angle remains the same, and the port and starboard tack changes are equal to the amount of change in the mean true wind direction. ?For example, if the mean true wind direction changes by 10, the port and starboard tacks each change by 10. ? Viewing Tide Information You can view information about a tide station, including the tide height and when the next high and low tides will occur. ?To search near a previously saved waypoint, select Waypoints, and select or search for a waypoint. ?To search near a specific city, select Cities, and select or search for a city. ?A 24-hour tide chart appears for the current date, showing the current tide height and when the next high and low tides will occur. ? The device displays in degrees the amount that your actual course varies from your expected course and your speed over ground . ?The bezel marks provide a quick reference that represents your lift angle. ?When your boat is consistently headed, you should change tack and recalibrate the true wind direction or the angle for the current tack. ?Recalibration ensures the tack assist provides accurate information. ? Configuring Tack Assist Settings 1 Select the blue key. ?To turn bezel tick marks on or off, select Tick Marks. ? Calibrating the Tack Assist Before you can use tack assist, you must calibrate the optimal tack angle for your boat. ?To view more detailed information about the next four tide peaks and troughs, select . ?To view tide information for a different date, select the blue key, select Change Date, and select the date. ? Calibrating the Tack Assist Manually During a race, you may need to adjust tack assist settings individually to adapt to changing conditions. ?NOTE: See page6 for more information about the relationship between the data stored by the tack assist feature. ? [. . . ] TWD (true wind direction): The true direction of the wind relative to North. ?TWS (true wind speed): The true speed of the wind relative to the vessel. ?VMG TO WND(velocity made good to wind): The speed at which you are making progress into the wind. ?WATER TEMP (water temperature): The temperature of the water. ? Data Pages TIP: You can customize the data pages for each profile (page10). ? By default, these pages appear in all profiles when you are not tracking or navigating. ? [. . . ]